“If your goal is to reduce costs, then coal is a good idea. If the goal is a renewable fuel, coal is a bad idea. When greenhouse-gas emissions go up, environmentalists take note. Then you've got a problem”

“Words, when well chosen, have so great a force in them that a description often gives us more lively ideas than the sight of things themselves”

“The idea that a good God would send people to a burning hell is utterly damnable to me - the ravings of insanity, superstition gone to see! I want no part of such a God”

“Where painting is weakest, namely, in the expression of the highest moral and spiritual ideas, there music is sublimely strong.”

“You can judge your age by the amount of pain you feel when you come in contact with a new idea.”

“The wise only possess ideas, the great part of mankind are possessed by them”